211243302222 has 24 divisors (see below), whose sum is σ = 445893069096. Its totient is φ = 66708410544.

The previous prime is 211243302209. The next prime is 211243302239. The reversal of 211243302222 is 222203342112.

It is a junction number, because it is equal to n+sod(n) for n = 211243302192 and 211243302201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48761293 + ... + 48765624.

It is an arithmetic number, because the mean of its divisors is an integer number (18578877879).

Almost surely, 2^211243302222 is an apocalyptic number.

211243302222 is an abundant number, since it is smaller than the sum of its proper divisors (234649766874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211243302222 is a wasteful number, since it uses less digits than its factorization.

211243302222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97526960 (or 97526941 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 211243302222 its reverse (222203342112), we get a palindrome (433446644334).

The spelling of 211243302222 in words is "two hundred eleven billion, two hundred forty-three million, three hundred two thousand, two hundred twenty-two".